Human recombinant Histamine Releasing Factor (HrHRF) Induced Histamine Release (HR) is Associated with SHIP Knockdown (k/d) in both the Cultured Human Mast Cell (MC) and Basophil Models

2007 ◽  
Vol 119 (1) ◽  
pp. S313
Author(s):  
J.M. Langdon ◽  
J.T. Schroeder ◽  
A.P. Bieneman ◽  
B.M. Vonakis ◽  
S.M. MacDonald
2008 ◽  
Vol 84 (4) ◽  
pp. 1151-1158 ◽  
Author(s):  
Jacqueline M. Langdon ◽  
John T. Schroeder ◽  
Becky M. Vonakis ◽  
Anja P. Bieneman ◽  
Kristin Chichester ◽  
...  

2013 ◽  
Vol 41 (06) ◽  
pp. 1267-1282 ◽  
Author(s):  
Phil-Dong Moon ◽  
Il Sang Choi ◽  
Ji-Hyun Go ◽  
Byong-Joo Lee ◽  
Sang Woo Kang ◽  
...  

BiRyuChe-bang (BRC) is a Korean prescription medicine, which has been used to treat allergic rhinitis at Kyung Hee Medical Center. In this work, we investigated the effects of BRC on mast cell-mediated allergic reactions and inflammatory cytokines production, and identified the active component of BRC. Histamine release was measured from rat peritoneal mast cells (RPMCs). Ear swelling and passive cutaneous anaphylaxis (PCA) were examined in mouse models. Phorbol 12-myristate 13-acetate (PMA) plus A23187-induced inflammatory cytokines production was measured using enzyme-linked immunosorbent assay. Reverse transcriptase-polymerase chain reaction was used for the expressions of tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-8. Activation of nuclear factor (NF)-κB was analyzed by Western blotting. BRC significantly inhibited the compound 48/80-induced ear swelling response, histamine release from RPMCs, PCA activated by anti-dinitrophenyl IgE, and PMA plus A23187-induced inflammatory cytokines production (p < 0.05). In addition, BRC dose-dependently inhibited the mRNA expressions of TNF-α, IL-6, and IL-8 as well as the activation of NF-κB in a human mast cell line, HMC-1 cells. BRC inhibited the levels of TNF-α and IL-6 in mice induced with PCA. Several components of BRC, such as 1,8-Cineole, Linalool, Linalyl acetate, α-Pinene, and α-Terpineol, significantly inhibited the release of histamine from RPMCs (p < 0.05). Among these components, Linalyl acetate was the most effective for inhibiting histamine release. These results indicate that BRC has a potential regulatory effect on allergic and inflammatory reactions mediated by mast cells.


2002 ◽  
Vol 70 (7) ◽  
pp. 3944-3947 ◽  
Author(s):  
Yukino Watanabe ◽  
Yuko Todome ◽  
Hisashi Ohkuni ◽  
Shinsaku Sakurada ◽  
Toshio Ishikawa ◽  
...  

ABSTRACT We constructed the expression vector pSK-SCP containing the streptococcal exotoxin B gene (spe b) which expressed protease activity. We showed that the recombinant streptococcal pyogenic exotoxin B/streptococcal cysteine protease (rSPE B/SCP) was secreted into the culture supernatant of the transformant and retained its SCP activity, which was equivalent to or greater than that of the naturally occurring molecule. The secreted rSPE B/SCP induced histamine release and degranulation of the human mast cell line HMC-1. This study may contribute to the understanding of the pathogenic role of SPE B/SCP in streptococcal infection and streptococcal toxic shock syndrome.


1987 ◽  
Vol 66 (Supplement) ◽  
pp. S82
Author(s):  
Carol A. Hirshman ◽  
Chester F. North ◽  
Nancy Kettelkamp

2002 ◽  
Vol 51 (3) ◽  
pp. 197-203 ◽  
Author(s):  
Toshinobu Kato ◽  
Masahiro Kimata ◽  
Toshikazu Tsuji ◽  
Michitaka Shichijo ◽  
Masayuki Murata ◽  
...  

2021 ◽  
Vol 22 (8) ◽  
pp. 3978
Author(s):  
Pavla Taborska ◽  
Dmitry Stakheev ◽  
Jirina Bartunkova ◽  
Daniel Smrz

The preparation of dendritic cells (DCs) for adoptive cellular immunotherapy (ACI) requires the maturation of ex vivo-produced immature(i) DCs. This maturation ensures that the antigen presentation triggers an immune response towards the antigen-expressing cells. Although there is a large number of maturation agents capable of inducing strong DC maturation, there is still only a very limited number of these agents approved for use in the production of DCs for ACI. In seeking novel DC maturation agents, we used differentially activated human mast cell (MC) line LAD2 as a cellular adjuvant to elicit or modulate the maturation of ex vivo-produced monocyte-derived iDCs. We found that co-culture of iDCs with differentially activated LAD2 MCs in serum-containing media significantly modulated polyinosinic:polycytidylic acid (poly I:C)-elicited DC maturation as determined through the surface expression of the maturation markers CD80, CD83, CD86, and human leukocyte antigen(HLA)-DR. Once iDCs were generated in serum-free conditions, they became refractory to the maturation with poly I:C, and the LAD2 MC modulatory potential was minimized. However, the maturation-refractory phenotype of the serum-free generated iDCs was largely overcome by co-culture with thapsigargin-stimulated LAD2 MCs. Our data suggest that differentially stimulated mast cells could be novel and highly potent cellular adjuvants for the maturation of DCs for ACI.


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